#include<stdio.h>
void main()
{
	int grade={91,90,92,93,94,95,96};
	int total=0;
	int i;
	float avg;
	for(i=0;i<7;i++){
		total+=grade[i];
}
		avg=((float)total/7);
	
	printf("the  students avarage is %f\n",avg);
	
}
